Portable Air Purifier Monitoring And Controlling System

International Research Journal of Engineering and Technology (IRJET) e ISSN: 2395 0056

Volume: 09 Issue: 07 | July 2022 www.irjet.net p ISSN: 2395 0072

Portable Air Purifier Monitoring And Controlling System

Harshal S. More 1 , Bhavesh R. Sahu2

1PG Student, PG Diploma in Industrial Robotics, RTMUN, Oberoi Centre of excellence, Nagpur, India

2PG Student, PG Diploma in Industrial Robotics, RTMUN’s, Oberoi Centre of ExellenceNagpur, India

3 Saurabh S. Chakole Asst. Prof., PG Diploma in Industrial Robotics, RTMNU’s Oberoi Center for Excellence, Nagpur, India

3 Neema Amish Ukani ,HoD, Asst. Prof., PG Diploma in Industrial Robotics, RTMNU’s Oberoi Center for Excellence, Nagpur, India

3 Sandeep Sonaskar ,Asst. Prof., PG Diploma in Industrial Robotics, RTMNU’s Oberoi Center for Excellence, Nagpur, India ***

Abstract: The proposed project presents the model of portable air monitoring and purification system which is Bluetooth operated for small rooms, cars, and low space areas. This system is controlled by Arduino Nano. The system consists ofa set ofsensorslike air qualitysensors and temperature sensors to determine the quality of air, whenevertheairqualitycrossesthethresholdvalueitwill displaytoxicorbadairqualityontheLCDscreen.wecanOn andOffthefansimplyusingourmobilephone.Thebodyof themodelismadeofanacrylicsheet.Thepurifierincludesa two layer of filter pre filter and a fine filter for best purification, it absorbed solid and dust pollutant and give dust free good quality air. It is a portable and handheld system.

Key Words: Arduino Nano, LCD screen, air quality sensor, temperature sensor, pre & fine filter (keywords)

1. INTRODUCTION

The Presence of dirt in offices, homes and alternative human environments isn't sensible. In fact, per the EnvironmentalAgency,indoorairqualityistwotofivetimes a lot of impure than doors air quality. Air pollution can adversely affect human health and its individual impact variesfromonetoanother.Notonlythecitiesarefacingthe problemofairpollutionbuttheindoorairqualityofrural and urban areas is also getting polluted. The health of millionsofpeopleisaffectedbythebadindoorairquality.I might prefer to enhance the sensors’ benefits and build a Smarterairapparatus.ratherthanthestandardmethodthat turning on the air apparatus the entire day. To survive against such indoor air pollution it is necessary to use an smart air purifier. Our project is “Portable Air Monitoring andPurifyingSystemwhichhastwolayersoffiltersanda Bluetooth operated fanthat coolsand makes thefreshair outwithoutusinganyharmfulcoolant.Thisdevicedoesnot causeozonedepletion.

1.1 LITERATURE REVIEW

Previous work done in this field is to observe indoor air quality[1 2].Inwhichvarioustypesofsensorsareusedto get the data on the different types of gases present in the environment.Inadditiontothat,itcancontroltheworking ofanyfilter.Theauthorofthepaperfollowedtheprocessof monitoring the air quality as well as temperature and humidityusingtemperatureandhumiditysensors.

Similarly,theworkisfinishedindifferentforms.In [2]usedtheirobservationsystemtoworkouttheairquality byusingvariouslikeMQ135,andDHT 11.whenanalyzing the air quality it permits the user to work his completely different family equipment to modify them on or off and changes.[3].

But there are some problems with this Process. Users need to operate Filter or household equipment manuallyafterthemonitoringsystemnotifythemaboutthe badairquality.Buttherearesomescenarioswheretheuser would not be able to operate or afford the equipment or filter. Like while they are sleeping and there is some gas leakage, they just would not be able to turn the filter or equipment on or off. Similarly, if we tend to attach an associate filter with the monitoring system it prices an excessiveamountoffiltergiftswithinthemarketareaunitas toocostly.[4 7]

N.Rakesh: ThispaperpresentsSmartAirPurifier with Air Quality Monitoring System for monitoring and purifyingtheairatthesametime.Theprincipalworkofthe SmartAirPurifierwithAirQualityMonitoringSystemisto detecttheharmfulgasespresentintheairanddisplaytoxic or bad air quality on the LCD screen at the same time by using filters the air purifier filters the air and gives fresh air.[8 10]

Mursil Mahmud: IoT Based Air Pollution Detection MonitoringSystemusingArduinoisadevicethatdetectsthe pollutioninthesurroundingairandwhenitcrossestheair

International Research Journal of Engineering and Technology (IRJET) e ISSN: 2395 0056

Volume: 09 Issue: 07 | July 2022 www.irjet.net p ISSN: 2395 0072

qualityindex,itisdisplayedontheLCDscreen.Thisdeviceis usedforonlymonitoringpurposes.[11]

TheuseofARMwiththememorycardandgassensorhelps formonitoringandstoringdataforpredictiveanalysis[12]. The combination of GPS and GSM makes tracking location[13].

1.2 Proposed Methodology

Fig.1. Block Diagram of Air quality and Monitoring System

InthisprojectweareusingArduinonanowhichisan open sourcemicrocontrollerbasedonAtmega328P. 

Bluetoothmodule HC 05andLCDareusedwhichis connectedtoArduinonano 

For monitoring purposes sets of sensors are used which are an Air quality sensor(MQ135) & Temperature sensor(DHT11) connected to an LCD screen by means of Arduino Nano. For purifying purposes,weareusingacoolingfanthatiscovered with pre & dust filters connected to the Arduino by means of a relay that is powered by an external battery. 

As the system senses the inconvenience in surrounding air it will display on an LCD screen like(bad&toxicairquality) 

Sowecaneasilyswitchonourpurifyingsystemusing our mobile phone by means of a Bluetooth module(HC 05) which is connected with Arduino nano.

1.3 Filtering System

FilteringPart

Air is sucked through the opening in the front paneloftheAirpurifierandisguidedtothefirst filter. 

The first filter is the “Pre filter” & its main functionistoremovethebigparticlespresentin theair 

Itremovesparticlesof3to10 micronsize.The secondfilteris“Dust filter”anditsmainfunction istoabsorbtheaircontaminantssuchashairs and other matter which is not visible to the nakedeye

Fig .2. Flow chart

When we switch on the cooling fan the air is sucked through the opening and it passes through the pre filter which removes the big particlespresentintheair. 

then the air has to pass through the dust filter which filters the air and absorbs the air contaminant such as hairs and other matter whichisnotvisibletothenakedeye. 

Hence we get the fresh air out by using our portableairfilter.



Aftertheairqualityindexreachesnormalasitshows (good air quality ) on the LCD screen so in we can switchoffourpurifyingsystemusingthesamemobile phone.

Fig.3. Pre-Filter

1.4

International Research Journal of Engineering and Technology (IRJET) e ISSN: 2395 0056

Volume: 09 Issue: 07 | July 2022 www.irjet.net p ISSN: 2395 0072

Temperature & humidity sensor(DHT 11): This is a type of electric device whose resistance varies with temperaturemodificationwetendtosquaremeasure exploitation DHT 11 for Observance Space. TemperatureDHT 11usesanelectricphenomenon

Fig 4. Dust Filter

Tools and Components

Table. no.1

TemperatureSensor(DTH11) 1Nos Arduinonano 1Nos FilterCloth 1Nos Battery(12V,2A) 1Nos acrylicSheet 1Nos

AirQualitySensors(MQ 135) 1Nos Coolingfan 2Nos Relay 1Nos

1.5.Components 

MQ-135Air quality: sensor used for detecting a wide range of gases, including NH3, NOx, alcohol, benzene, smoke, and CO2. Ideal for use in office homes and Schools. Air quality sensorssquare measureused forsleuthingalargevarietyofgases,aswellasNH3,NOx, alcohol, benzene, smoke, and CO2. It idealto be usedinworkplaceshomesandfactories.

Fig. 8 DHT 11 

LCD (16x2): Aliquid crystalshow(LCD)maybeaflat panelshoworanotherelectronicallymodulateddevice that uses the light modulating properties of liquid crystal.Liquidcrystalsdon'temitlightweightdirectly, insteadofemployingabacklightorreflectortosupply pictures in color or monochrome. LCDs are on the market to show discretionary pictures (as in an exceedingly general pcdisplay) or mounted pictures with low data content, which may be displayed or hidden.

Fig. 6. LCD (16X2)

• Cooling Fan:weareusingthecoolingfanforsuctionof impure air and after filtering it sends back the fresh qualityair.

Fig. 4. MQ135

Fig .7 Coolingfan



International Research Journal of Engineering and Technology (IRJET) e ISSN: 2395 0056

Volume: 09 Issue: 07 | July 2022 www.irjet.net p ISSN: 2395 0072

Arduino Nano:WeareusinghereArduinoNanowhichis an open source microcontroller. The ATmega328P provides UART TTL serial communication and is providedwithsetofdigitalandanalogI/Opinswhich usedtointerfacewithmultipleelements.TheArduino Nano may be a little, complete, and the breadboard friendly board supported the ATmega328 (Arduino Nano3.x).

VII. RESULTS

Fig .8. Arduino Nano

Bluetooth module(HC 05): wirelesscommunicationis swiftly substituted by the Wired associate once it involvesphysicsandcommunicationsometimesweare hereusingBluetoothforcontrollingthecoolingfanvia relay

Fig .9. HC 05 

Battery:Weareusinghere12v,2Abatterytorunthe coolingfan,forcoolingpurposes.

Fig .10. Battery

Fig. 11 (a)

Fig .11. (a) & (b) Working Model of Monitoring and Purifying System

1.6 Conclusion

A low cost portable prototype model for air monitoring and purifying is presented which Is efficient, convenienttouse,andbudget friendly.Thecontributionof thisproductistosurviveagainstsuchindoorairpollution whichcontinuouslyaffectshumanhealth.Wemadeituser friendly.Itshouldalsobenotedthataffordablesensorand airfilterplaysanimportantroleinairqualityobservation andpurification.

1.7 References

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International Research Journal of Engineering and Technology (IRJET) e ISSN: 2395 0056 Volume: 09 Issue: 07 | July 2022 www.irjet.net p ISSN: 2395 0072

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